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Physics: Post your doubts here!
27) look, for you to determine the polarity you just see,weight of body should act downwards therefore electric field should act upwards body should be attracted upwards(towards positive pole)means it is negatively charged .now since body is kept at rest..electric force=weight electric force =...- Thought blocker
- Post #10,193
- Forum: A-Levels
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Physics: Post your doubts here!
The horizontal velocity will decrease to Zero and the veritcal velocity will increase until it reaches a constant value. This question involves the concept of terminal velocity. The vertical velocity will increase initially due to the object's weight by as it is countered by drag the velocity...- Thought blocker
- Post #10,191
- Forum: A-Levels
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Physics: Post your doubts here!
A quark is one of two currently recognized groups of fundamental particles, which are subatomic, indivisible (at least as far as we know today) particles that represent the smallest known units of matter- Thought blocker
- Post #10,188
- Forum: A-Levels
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Physics: Post your doubts here!
Since charge on proton is +ive e, the sum of both 'up quarks' and 'down quarks' should equal to 1.- Thought blocker
- Post #10,176
- Forum: A-Levels
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Physics: Post your doubts here!
why you think its 0.4 rather than 0.2? Well, no it wont because we are dealing with the minimum force that could lift the weight that is weight=tension, there wont be additional force that could cause the disc to rotate- Thought blocker
- Post #10,174
- Forum: A-Levels
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Physics: Post your doubts here!
What you dint get in this ? :)- Thought blocker
- Post #10,173
- Forum: A-Levels